I believe that J.S. Bach wrote 6 Brandenburg Concertos:-

* Brandenburg Concerto No. 1 in F major, BWV 1046 * Brandenburg Concerto No. 2 in F major, BWV 1047 * Brandenburg Concerto No. 3 in G major, BWV 1048 * Brandenburg Concerto No. 4 in G major, BWV 1049 * Brandenburg Concerto No. 5 in D major, BWV 1050 * Brandenburg Concerto No. 6 in B flat major, BWV 1051

Bach's BWV 1043 is a Concerto for Two Violins and Strings in D minor; it is in 3 movements. The first movement is in cut time; the 2nd movement is in 12/8; the 3rd movement is in 3/4.

The BWV Numbering System is a method of ordering and labeling the various works of the classical artist Johann Sebastian Bach. BWV stands for "Back-Werke-Verzeichnis", which is German for "Bach Works Catalog".

Lots of composers wrote masses. Some of the most famous masses are: Missa Solemnis by Beethoven Mass in B Minor by Bach Grand Mass in C Minor by Mozart

Wikipedia shows the manuscript of the first sonata (BWV 1001) is autographed from 1720. One could possibly assume that all the third partita (BWV 1006) was composed around the same time.